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Subject: Re: VLF: Tweek mode resonances
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Hi Paul,

You wrote:
>...
> I had to wait a while for a UK thunderstorm.
> ...

That may be essential for H-field reception.
But I'm observing those effects very often on an
E-field rx without any thunderstorm activity nearby.
See (lower left):
http://lf-radio.de/misc/tweekmode_15-08-21.png
And the corresponding chart from "Blitzortung":
http://lf-radio.org/cgi-bin/blitz/show-blitz.cgi?loc=2015&date=08-21&time=0200

Peter, df3lp